This magazine is made from five FDM printed parts and is driven by two pieces of shock cord. This new method of shock cord spring elements allows for finer spring adjustment and reduced magazine length as space doesn’t have to be left at the bottom for a compression spring to reside. Somewhat complicated reverse engineering was accomplished in order to match the existing magazine and magwell geometries. Lastly, the project files and an extensive guide on assembly were provided on thingiverse.com where the project currently sits at 922 downloads.